Question about private sector to gs level
So i currently work for a federal agency as a contractor, i have a masters in engineering and 15yrs experience, they are converting my job from private to civil. Im a single point of failure, 1 man show technical SME and lead administrator for software that has 1500 users, ive trained project admins who are 80% 14/15s as well as program admins, I handle everything from provisioning to architecture to scripting and security. Is expecting my position to be a gs-15 as a technical SME too much or I should I be prepared to see a 14 as the position cap. Im not a personnel manager but I manage the software for dozens of projects and 1500 users across multiple agencies.